Researchers are carrying out an aerial study of southern right whales to better understand their behaviour.
Images of a rare white whale calf have been captured by scientists using drones to study the endangered animals off the coast of Western Australia.
Only about 5% of calves are born white, and they darken to grey in their first year.
Researchers hope the survey of the south right whales will help conservation efforts.
"Drones are allowing us to non-invasively measure the size and body condition of free living southern right whales," said Fredrik Christiansen, a researcher at Murdoch University's Cetacean Research Unit.
The drones are part of an innovative programme, which also attaches tags to the whales to measure their dives and sounds.
http://news.sky.com/story/drones-capture-rare-images-of-endangered-whales-off-australia-10566903